约翰尼斯·贾瓦尼斯 (Johnius javaensis) 是一种来自印度尼西亚爪岛南部海岸的鱼 (Acanthuriformes,Sciaenidae) 的新物种
相关实验视频
Updated: Jan 10, 2026

07:57
Necropsy-based Wild Fish Health Assessment
Published on: September 11, 2018
17.9K
Bai-An Lin1, John J Pogonoski2, Fahmi3
1School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China The University of Hong Kong Hong Kong SAR China.
ZooKeys
|November 21, 2025
概括
一个新的鱼物种,Johnius javaensis sp. Nov. 在印度尼西亚被发现. 这种物种有五个下巴,使其与其他Johnius物种区别开来.
科学领域:
- 鱼类学 鱼类学 鱼类学
- 海洋生物学 海洋生物学
- 纳税学是一种分类学.
背景情况:
- 科科 (Sciaenidae) 家族,通常被称为科,包括许多种类,分布多样化.
- 准确的物种识别对于了解鱼类生物多样性和种群动态至关重要.
研究的目的:
- 描述了一种新发现的鱼种,Johnius javaensis sp. nov.,来自印度尼西亚水域.
- 根据形态和遗传数据,将新物种与之前描述的Johnius物种区分开来.
主要方法:
- 在印尼爪收集的五个标本 (87-121毫米标准长度) 的形态检查.
- 与Johnius物种现有的描述进行比较分析.
- 用线粒体细胞染色体c氧化酶子单元I (COI) 基因对21个约翰斯物种进行了基因遗传学分析.
主要成果:
- 约翰尼斯·贾瓦尼斯斯 (Johnius javaensis) sp. 这种植物是 Nov. 的特点是五个囊状脑,30-32个背射线,横线以下的7-8个尺度行,11-12个下状,和11-12个游泳膀附属物.
- 这种新物种之前被误认为是Johnius heterolepis.
- 遗传学分析发现了约翰尼斯·贾瓦恩西斯 (Johnius javaensis sp.) 的存在. 作为Johnius macropterus的姐妹物种,平均不相似度为8.16%.
结论:
- 约翰尼斯·贾瓦尼斯斯 (Johnius javaensis) sp. 这种植物是 nov. 是Sciaenidae家族中的一个独特的物种,可以通过其独特的五个脑来轻松识别.
- 这一发现凸显了海洋环境中正在进行的分类学研究的重要性.
- 这些发现有助于印太地区的鱼类学知识.
相关概念视频
Multi-species Conserved Sequences
4.6K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
4.6K
Speciation Rates
22.5K
Overview
22.5K
Genetics of Speciation
20.8K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
20.8K
Convergent Evolution
31.3K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
31.3K
What is a Species?
49.2K
Overview
49.2K
Osmoregulation in Fishes
52.7K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
52.7K

